What is the correct ratio of estrogen to progesterone?

The correct ratio of estrogen to progesterone can vary depending on the specific phase of the menstrual cycle or the purpose of assessment. During the follicular phase of the menstrual cycle, a ratio of estrogen to progesterone of approximately 1:1 is typical. However, during the luteal phase, after ovulation, the ratio shifts to favor higher levels of progesterone compared to estrogen. The optimal ratio for fertility and maintaining a healthy pregnancy depends on various factors and may vary for different individuals. It's important to consult with a healthcare professional experienced in reproductive health or hormone management who can evaluate your specific situation and provide personalized guidance based on your unique needs and goals.